X370/470/570 PCIe 4.0 Help me understand.

EsaT said:
There's no increase in PCIe lane count of CPU.
It stays in 16+4+4. (PCIe+M.2+PCH)

And those lanes coming from chipset will stay at their current speed and there won't be any heat output increase.
Connection between CPU and chipset simply operates at old speed.

Unless there's some new motherboard support requiring in CPU's core boosting/automatic clocking, for average use with really only GPU needing high bandwidth current mobos getting PCIe v4 support for main slot can stay very relevant.
Especially unless pricing of new x570 mobos is better than expected.


And neither will make meaningfull difference in most real world usage, when most home users don't do much anything which would even really benefit from NVMe over SATA.
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Yup thats right, 24 from the CPU but only 20 useable (16 or 8/8 for the GPU and 4 for the first nvme) as with previous RyZen's, the other 4 are dedicated to the chipset, however, the chipset will also provide 20 PCI-e 4.0 lanes too, hence the cooling fan on the chipset, at full pelt its an 11w part which is quite a bit when you think that most laptops have a 15w CPU in them, we get 40 PCI-e lanes in total with Ryzen 3000 and x570, a full speed GPU and 3 nvme drives at full speed, amazing RAID0 speeds with PCI-e lanes to spare.
 
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EsaT said:
Why I'm smelling stink of expensive prices besides noisy fans on X570?
https://www.reddit.com/r/Amd/comments/buydi6/amds_robert_hallock_no_pcie_40_support_on_300_and/
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Update: We spoke with AMD representatives, who confirmed that 300- and 400-series AM4 motherboards can support PCIe 4.0. AMD will not lock the out feature, instead it will be up to motherboard vendors to validate and qualify the faster standard on its motherboards on a case-by-case basis. Motherboard vendors that do support the feature will enable it through BIOS updates, but those updates will come at the discretion of the vendor. As mentioned below, support could be limited to slots based upon board, switch, and mux layouts.
 
Panos said:
TBH why someone could buy a X470/370 board when even the Gigabyte X570I has much better power delivery to facilitate the new CPUs?
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Haven't so far seen much of proofs that pricing won't be salty wth the cost of that all PCIe v4.0.
Now if the makers trash binned all that RGB bling bling and plastic garbage that could maybe keep price down.
But people want to pay overpricing for garbage which even hinders cooling of motherboard...

And if that chipset fan is running always, that's drawback.
We don't yet know if these new mobos actually idle properly.
And even that fan is blocked PR BS excrement in most mobos.

Dozen+ years ago I had motherboard with chipset fan and it didn't last well.
Replaced it twice with replacement fan gotten from support during warranty, before buying proper passive heatsink for chipset.
 
X570 chipset and later will be compatible with PCIe 4.0
1 of the reasons the X570 boards will cost more due to Circuitry/ PCB Layers
to support the higher watts of the new chipset for 4.0

So the bios updates on the x470/450 that allow 4.0 , may get blocked In a future update
 
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Based on MSI's I get the feeling that the bottom of the barrel stuff will be around £200, and you will need to spend £250 for the mid range. Still hoping it may be £150 for low, and £200 for mid, but the pricing decisions have not been finalised.... fingers crossed!
 
Just compare against the Z390 prices and you'll get a rough idea, thats what the MSI CEO said....maybe in some cases a little bit more expensive.

MSI ACE Z390 is £250, but the Godlike is £550

The arrival of AMD's Ryzen 3000 series CPUs brings more multi-threaded heft to the mainstream desktop and sweet new technologies like PCIe 4.0. Unfortunately, according to what we learned in an interview with MSI CEO Charles Chiang and from other vendors at Computex 2019, the platform will also bring higher pricing for the next series of AMD motherboards. As a result, X570 motherboard pricing could be similar to Intel's expensive Z390 motherboards, if not higher. In fact, even the lowest-end X570 boards could cost more than most previous-gen X470 boards, though Chiang stressed that pricing decisions are still not finalized.
 
For graphics cards PCIE gen4 it's not going to do anything ground breaking beyond a few FPS on scaling (margin of error stuff).

Q. Do you need PCIE gen4?
A. Nope, nice to have going forward, but is by no means essential at this point in time.

Image is not hot linked btw.
pcie-gen4.png
 
Word on the street is MSI will be dropping their X570 pricing a bit as they're currently about the highest priced of the motherboard vendors.

Currently deciding between MSI and Gigabyte depending on features and pricing. Not worried about what PCIE 5 brings as if PCIE 4 is years away from being fully saturated I may have upgraded again before PCIE 5 becomes necessary.
 
The Old School Gamer said:
For graphics cards PCIE gen4 it's not going to do anything ground breaking beyond a few FPS on scaling (margin of error stuff).

Q. Do you need PCIE gen4?
A. Nope, nice to have going forward, but is by no means essential at this point in time.

Image is not hot linked btw.
pcie-gen4.png
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Don't trust anything that site says.
They wouldn't know the different between AC and DC even if connected as part of 240V wiring.
Because that's total Donald&Vladimir load of BS.

Only time any image is ever transferred over PCIe is if you're doing frame/video capturing for streaming etc.
PCIe is used for transferring instructions and processing data between CPU and GPU.
Latency which actually makes discrete GPU not great for calculating game engine physics.
 
Quick question.
I'll most likely be getting a 3700/3800x.
From what I understand I don't really need an x570 board, so looking at the CH VII hero x470. Only problem is not having a CPU to put in to update the bios, but from what I've read it's possible to update it via USB without a CPU. Is that correct?

It will be used for gaming and Netflix mostly, so I don't think pcie 4 would be a benefit to me but correct me if I'm wrong.
 
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